Direct embedment of RVE-based microscale into lab size coupons to research fracture process in unidirectional and bidirectional composites

The structural applicability of fibre-reinforced polymer (FRP) composites requires testing for their resilience against fracture. paper presents a virtual tool to configure the microscale geometrical model constituting representative volume element embedded in homogeneous macroscale region, providing an alternative tedious experimental procedures. conformal meshing strategies microregion are also elucidated paper. is enriched with constitutive material models exhibiting complex phenomena individual constituents composite and cohesive damage properties. elastoplastic elastic–viscoplastic coupled energy-based rate-dependent initiation criteria, respectively, applied matrix. At same time, fibre-matrix interface treated weak traction–separation law. Through tool, region allows make insightful study toughness mechanism visualise propagation FRP structure at different fracture modes.